Hina Takanashi (小鳥遊 ひな)

Age: 3 (TV), 8 (OVA)

She is the youngest of the three sisters. In preschool. The only girl of the sisters who is related by blood to Yuuta. She is very friendly and not afraid of strangers. She normally refers to Yuuta as little uncle (Oi-tan). She likes to carry a stuffed bunny with her.